Topic 2 Shape and Measurement (U1) Flashcards
What is the formula for finding the Hypotenuse?
c2= a2 + b2
the 2 is squared
What are the three sides of the triangle?
- Hypotenuse
- Opposite
- Adjacent
How do you find a missing side in Pythagoras?
a2= c2 - b2
the 2 is squared
Convert the following:
mm –> cm
cm –> m
m –> km
Answers:
/10
/100
/1000
Convert the following:
km –> m
m –> cm
cm –> mm
Answers:
x 1000
x 100
x 10
What is the formula for finding the Perimeter of a square?
= S + S + S + S OR
= S2
[S squared]
What is the formula for finding the Perimeter of a Rectangle?
= L + L +W + W OR
= 2 x L + 2 x W OR
= 2L + 2W
What is the formula for finding the Perimeter of a Circle? (with the radius)
= 2 Pi r
r squared
What is the formula for finding the Perimeter of a circle? (With the diameter)
= Pi D
What is the formula for finding the Perimeter of a sector?
= Theta/ 360* x 2 x Pi r
* = degrees
(r squared)
What is the formula for finding the area of a rectangle?
= L x W
= LW
What is the formula for finding the area of a circle?
= Pi r2
2 squared
What is the formula for finding the area of a sector?
= Theta/ 360* x Pi r2
* = degrees
(2 squared)
What is the formula for finding the area of a triangle?
= 1/2 bh
What is the formula for finding the area of a trapezium?
= 1/2 (a + b) h
What is the formula for finding the area of a Parallelogram?
= bh
What is the formula for finding the area of a Kite?
= 1/2 xy
What is the formula for finding the area of a Rhombus?
1/2 xy
What is the formula for finding the volume of a cylinder?
= A x H
= Pir2 x H
(2 squared)
What is the formula for finding the volume of a triangular prism?
= A x H
= 1/2 b h H
What is the formula for finding the volume of a rectangular prism?
= AH
= L W H
What is the formula for finding the volume of a 3D Square?
Forgot name…
= AH
= S2 H
(2 squared)
What is the formula for finding the volume of a tapered triangular prism?
= 1/3 Pir2 H
2 squared
What is the formula for finding the volume of a sphere?
= 4/3 Pir3
3 squared
What is the formula for finding the volume of a 1/2 sphere?
= 2/3 Pir3
3 squared
What is the TSA of a rectangular prism?
TSA= Total surface area
= 2 (Lw + Lh + Wh)
What is the TSA of a cube?
TSA= Total surface area
= 6S2
2 squared
What is the TSA of a cylinder?
TSA= Total surface area
= 2 Pir2 + 2 Pir x h
What is the surface area of a tapered cone?
= Pir2 + Pir S
2 squared
What is the surface area of a tapered sphere?
= 4Pir2
2 squared
